Question

1 Lola collects blood donations at a clinic. 7/16 of the donations are of Type 0, 3/8 are of Type A, and 1/16 are Type AB. The remaining are Type B. What part of the blood donations are Type B?

Answer 1

Answer:

n=1/8

Explanation:

From the diagram, if we sum up all the parts, we have:

$\frac{7}{16}+\frac{3}{8}+\frac{1}{16}+n=1$

We solve the equation above for n.

The lowest common multiple of 16 and 8 = 16

Therefore:

$\frac{7+6+1}{16}+n=1$

Therefore:

$\begin{gathered} \frac{14}{16}+n=1 \\ n=1-\frac{14}{16} \\ n=\frac{16-14}{16} \\ n=\frac{2}{16} \\ n=\frac{1}{8} \end{gathered}$

The value of n is 1/8.